LONGI LR5-54HTH-430M User manual

V02
LONGi
Module Product Manual

Table of Contents
1 / Safety Precautions 3
2 / Module Introduction5
3 / Modules Transpo and Storage10
4 / Unloading and Storage14
5 / Unpacking18
18
18
21
6 / Module Installation22
5
7
2.1 Schematic diagram of module structure
2.2 Module identication
5.1 Conrmation of mounting system before unpacking modules
5.2 Unpacking requirements
5.3 Unpacking steps
22
22
22
23
23
24
24
25
25
26
26
26
27
28
28
29
29
29
6.1 Storage precautions before installing modules
6.2 Precautions for handling modules prior to installation
6.3 General safety
6.4 Electrical peormance safety
6.5 Operation safety
6.6 Installation conditions
6.6.1 Installation site and working environment
6.6.2 Selection of tilt angle
6.7 Mechanical installation
6.8 Installation method
6.9 Electrical installation
6.9.1 Electrical peormance
6.9.2 Cables and wiring
6.9.3 Connecting cable
6.9.4 Bypass diodes
6.9.5 Safety of electrical connections
6.10 Grounding
6.10.1 Grounding clamp
10
13
3.1 Transpo and storage requirements
3.2 Notes on claims for cargo damage in transit

9 / Technical Problems or After-Sales Seice40
10 / Disclaimers40
7 / Cleaning33
7.1 Cleaning requirement
7.2 General description
7.3 Optimal cleaning time
7.4 Planning of cleaning cycles and sections
7.5 Routine cleaning
30
31
31
31
32
33
33
34
34
35
8 / Operations and Maintenance36
8.1 Module visual inspection
8.2 Connectors and cables inspection
8.2.1 Connector installation
8.2.2 Connector assembly requirements
8.3 Additional operation and maintenance notes
36
36
36
36
39
6.10.2 Unoccupied mounting holes grounding
6.10.3 Bolt-on grounding
6.10.4 Screw size ST4.8~6.3
6.10.5 Other third pay grounding devices
6.10.6 Mounting and xing precautions

Safety Precautions
1
Do not contact live pas of the module directly.
Do not disassemble modules or remove the nameplate or
any adhered pas.
Do not paint or paste any object on the suace of the
modules.
Do not focus sunlight on the modules using mirrors or
lenses.
No unattended children allowed near the modules.
Pulling on the junction box cable is strictly prohibited.
Do not place modules in areas where combustible gases
are likely to be generated or stored.
No stepping on module.
3

Safety Precautions
1
Do not place or throw weights on or onto the modules to
avoid damaging the glass.
No bumping of modules.
Metal jewelle is prohibited near the modules.
The use of non-insulated tools are prohibited.
No installations in rain.
The modules need to be reliably grounded. The PV array
grounding should be continuous and reliable, and the
grounding resistance should be less than 4Ω.
4

5
Module Introduction
2
2.1 Schematic diagram of the module structure
12
7
10 10
8
99
14
13
11
Schematic diagram of the monofacial module structure
5
6
1234
5
Bifacial Modules (With Frame)
12
3
4
5
10
9
7
8
12
11
1.Frame 2.Glass 3.EVA
5.Back Sheet 6.Silica Gel 7.Junction Box 8.Nameplate
9.Cables 10.Connector 11.Mounting Hole 12.Grounding Holes
13.Drain Holes 14.Barcode
4.Solar Cell

Schematic diagram of the bifacial module structure
6
Module Introduction
2
Bifacial Modules (Frameless)
2
34
3
5
Module electrical diagram
1.Frame 2.Front Glass 3.EVA/POE
5.Back Glass 6.Sealant 7.Junction Box8.Nameplate
9.Mounting Holes 10.Grounding Holes 11.Drain Holes 12.Barcode
4.Solar Cell

7
Monofacial Modules
Bifacial Modules
10
9
7
8
12
11
2.2 Module identication
12
7
10 10
8
99
14
13
11
Nameplate: Information on module parameters, including rated power, rated current,
rated voltage, open-circuit voltage, sho-circuit current under standard testing
conditions, ceication indicator, maximum system voltage, etc.
Diagram of nameplate location
Module Introduction
2

88
Current classication: The current is divided into 3 classes： H for the high class, M
for the middle class and L for the low class. The best practice is to only use modules
with the same power and current class within the same string during installation.
Diagram example of current classication
Module Introduction
2

9
The patterns and contents of the above barcode and nameplate are for demonstration
purpose only.
Barcode: Eve module is marked with an unique serial number for traceability.
Diagram of barcode location
Module Introduction
2

1010
Module Transpo and Storage
3
3.1 Transpo and storage requirements
LONGi solar photovoltaic modules are packed with a
layer ofplastic lm on the outside of the pallet, which
provides basic dust and water protection for the mod-
ules. For long distance transpo or long time site stor-
age, do not unpack pallets. The diagram on the right
shows the package detail.
1
4
5
6
7Internal strapping
8Module corner protector
9Veically strapped modules
2
3
Note: the exterior pallet printing, labeling and the packing method may va depending on the
product type and batch. Images shown above are for reference only.
Stack intercon-
necting straps
Shipping label
External corner protectors
Plywood divider ( doule-glass
models only )
Cardboard sleeve
External strapping
Packaging diagram

11
Module Transport and Storage
3
The packed modulescan be transpoed by road, sea or air. Please ensure that the
packed modules do not roll or slide during transpo. It is preferable to secure the pallets
to the transpo platform. The modules should be prevented from falling from higher
ground. Itisalsonecessatoavoidviolentshocksandbumpstothepackaged mod-
ules. The diagram below shows theupward, fragile, and no-rolling sign, respectively.
The pallet is not completely moisture-proof and the
structural integrity of the pallet will be reduced when
exposed to moisture, which could be dangerous. During
transpo and storage, do not expose the modules to
rain or moisture and keep them in a ventilated, water-
proof and d place.
Packaged modules can be stacked together for transpo or storage up to a maximum
of one layer. When using non-facto vehicles or containers for intermediate transfers,
secure the pallets with a at suppo or rain cloth straps around the pallet and with
additional paddings, such as airline inatable bags, if the pallet is more than 10cm
from the carriage wall to avoid skewing and damage to the pallets.
Gap>10CM

12
To open the pallet, please follow the steps in 5.3 Unpacking steps. The packaging
materials are recyclable.
It is forbidden to store the modules together with corrosive chemicals or gases. Pay
close attention to re prevention and keep the storage temperature within -40~+85 °C.
Extended exposure to the sun is prohibited.
If the pallet is found to be moist, carefully unpack and
remove the modules from the pallet and place them in a
ventilated area. Do not stack modules from more than
one pallet in a single stack after unpacking. Module
must be handled by two persons at the same time. The
stacked modules must be aligned at the top and
bottom of the frame and must not press on the connec-
tors and cables.
Stepping on top of pallets and modules is prohibited.
Modules Transpo and Storage
3

13
3.2 Notes on claims for cargo damage in transit
Upon arrival of the module at its destination, the customer must promptly conrm
whether the outer sleeve and the modules are damaged or abnormal in appearance.In
the event of any damage to the outer packaging of the module, the customer must im-
mediately take photographs of the whole vehicle and pallet upon arrival to record evi-
dence of the damage, mark down the non-conformance on the delive form, and
inform the carrier and LONGi for inspection. Customers resee the right to reject
damaged pallets from the carrier. If signed with no damage notation, the pallet and
modules shall be treated as undamaged. Any fuher damage found will be at respon-
sibility of receiver.
If the quantity of modules is found to be insucient, the customer should immedi-
ately obtain proof of damage or discrepancy from the carrier, consignee or relevant
agency and indicate the actual quantity received on the signed receipt. When
making a claim to LONGi, the claimant needs to provide the following documents:
waybill, invoice, packing list, signed receipt, valid photographic proof and claim list.
If there is a delay between module delive and unpacking, module damage found
after unpacking can be proven to be caused by transit/handling upon presenting
the combination of packing sheet, pallet ID, valid photographic evidence and/or
inspection repos. Photos proving module damage from transpoation should be
taken as a whole pallet, prior to cutting individual modules loose. Note that the
delay to unpack modules cannot exceed 10 days after arrival to project site.
LONGi will not be liable for any damage to the modules due to irregular transfer, re-
versal or handling operations on site, but may provide replacement at the custom-
er’ s cost.
Modules Transpo and Storage
3

14
Unloading and Storage
4
Upon arrival of the modules, check for the following items:
- whether the rain cloth protection of the vehicle is in place
- whether the appearance of the cardboard packaging is intact
- whether there is rain damage on pallets
- condition of the transpo vessel is intact
- position of ropes/straps are in place
- whether full trays have shifted (skewed or broken pallets/pas)
- any other abnormalities (please specify)
After conrming evething is normal, sta preparing for unloading.
Container transpo: After the container arrives, rst check externally whether there is
serious deformation, holes on the container body, or any other abnormalities; then
check whether the container had previously been opened. The door should be opened
carefully in case of pallet collapse. Once conrmed evething is normal, carefully open
the door to prepare for unloading.
Forklifts or cranes are recommended for unloading modules, and can be selected accord-
ing to the actual situation on the power station site. The forklift must be operated by a
qualied operator with appropriate license; otherwise, they must not operate the relevant
vehicle to unload the modules to avoid causing damages to the modules or injuries to the
personnel on site. When unloading, the fork must not hit the pallet. When lifting, ensure
that the center of gravity of the entire box is stable and in the center of the box, and han-
dled with caution.

15
Unloading and Storage
4
When unloading with a special forklift , select forklift fork length appropriately for pallet
size. The fork must be at least 90% in contact with the pallet suace . When the forklift
is running, please avoid erce vibrations on rough terrain or backrest signicant tilting
at one end. Impact and collisions are strictly prohibited. The height of the forklift's back-
rest must be higher than the height of a single pallet, and the contact area between the
backrest and the box must padded.
Forklift tines inseed from the sho side
(recommended). H > single trailer packing height,
L > 90% of pallet length.
Forklift tines inseed from the long side (allowed,
but not recommended). H > single trailer packing
height, L > 90% of pallet length.
Fork tines need to be inseed centrally.
Additional cushioning material on forklift
backrests.
Forklifts longer than the length of the pallet will hit
adjacent pallets.
Inseed from the long side, the backrest is below
the height of the package and there is no gap
between it and the box, which can break the glass by
pressing the internal modules.
H
L
L
Cushioning materials
H
L
Clearance required for backrest and packaging
Safety Specialities Ecient Intention

16
When using a crane to unload the modules, special lifting tools must be used. The
lower suppo bar of the sling must be rectangular steel, and the width of the rect-
angular steel must not be less than 8cm.Round steel is not allowed to be used to
avoid stress concentration damage at the bottom of the pallet and the risk of tip-
ping due to the rolling of the round steel. The upper pa of the lifting assembly
must have a crossbar, with internal dimensions corresponding to the dimensions of
the pallet. The lifting point must be marked at the pallet's lifting point to prevent
crushing stresses on the sides of the pallets during lifting, resulting in deformation
or bursting of the internal module frame. Avoid shaking of the pallets against each
other or sudden or jerking movement during lifting and landing.
The area where the modules are to be unloaded must be at and spacious. Avoid
waterlogged, potholed or sloping areas. Keep pallets away from chemical corro-
sion, ooding, re hazards, blasting and vibration sources, etc. Arrange the pallets
in a neat and orderly manner with the top and bottom pallets aligned to avoid
overhanging pallets, skewed pallets or misalignment of the top and bottom pallets.
Do not exceed the maximum number of pallets (2) printed on the box when stack-
ing the modules. Do not stack modules in areas of signicant slope (stacking of
two pallets).
Unloading and Storage
4

17
Package
Overall photo of the defective
packaging
Close-up detailed photo of the
defect
Shipping label
Container
If there is any damage to the packaging of the outer pallets , photos must be taken to
retain evidence (damaged pallets, license plate number, container number). Inform the
driver to conrm and note the damage details on the receipt, and provide relevant evi-
dence photos to inform LONGi sales sta.
If installation is not possible in time, a rainproof cloth or corresponding waterproong
measures should be used to prevent damage to the cardboard sleeve and pallet from
weather, which may compromise the structural integrity of the packing materials
during transfer or allow water ingress to the internal electrical connections of the mod-
ules .
Unloading and Storage
4

18
Unpacking
5
18
5.1 Conrmation of mounting system before unpacking of modules
The mounting system are installed in accordance with the construction specications
and drawings, and the beams and purlins must be securely connected and xed.
The PV racking should be installed neatly, aesthetically pleasing, and without distor-
tion, which may aect the installation quality of the modules. All racking systems
should be conrmed for module compatibility and checked for installation quality prior
to module installation.
5.2 Unpacking requirements
Caution：
Before unpacking and transpoing the modules, conrm the condition of each
module. If abnormalities such as bursting or damage are found, stop transpoing
immediately and inform the customer seice personnel, supeisor, general con-
tractor and owner on site to take photos and conrm that the rest of the modules
and packing boxes will not be moved on site.
When unpacking outdoors, it is forbidden to work in rainy conditions. This is be-
cause the caon will soften and loosen when exposed to rain and the modules
inside may fall out, causing damage to the modules or inju to people.
If windy conditions prevail on site, special care should be taken to ensure safety. It
is NOT recommended to unpack the modules in windy conditions. Unpacked mod-
ules should be properly secured.
Place the pallets on at ground to avoid tipping over.
Use scissors or an utility knife to cut the outer packing straps sho. Take care to
avoid cutting into the backsheet or frame, and check the amount of modules
inside the box in time after opening .
When opening a full box of modules, hold the module to prevent it from falling,
which may cause microcracks or burst of the modules.
Equipment and tools : knives, gloves, forklift
Personnel : At least four people

19
Unpacking
5
Use a forklift to move the pallets to the working area (same requirements for forklift
as in chapter 4), avoiding violent bumps and vibrations during the movement of the
modules and avoiding the pallets from tipping backwards during transpo. In the
case of manual forklifts, it is best to inse the forks from the sho side of the pallet.
The long side of the unpacked modules needs to be placed close to a solid wall
(15-20 cm distance), or on a suppoing tool.
Conrm the box is intact and that the relevant information on the shipping label,
including product type, specication, number of modules in the pallet, barcode, elec-
trical peormance parameters and current rating of the corresponding modules, is
correct and that the modules of the same current rating are installed in the same
string. Avoid mismatching losses due to stringing modules with dierent current
rating.
5.3 Unpacking steps
Shipping label
Determine the current class shown on the module frame and install modules of the
same current class in the same area (array, combiner box).
When unpacking, be careful of edges of the frame, blades or other sharp objects
to avoid cutting yourself or others.
For safety reasons, it is forbidden to unpack the upper pallet while they are
stacked.